Overwrought. Too long. Kind of boring honestly. I had to return to the library at 80% and enjoyed it to that point. When I checked it out again the last 20% drug in a constipated strain. I also tried the extremely long book about trees by him, The Overstory. The characters in both are interesting, dimensional, and lifelike but the story here and there were so overdone, overstated, over-storied, "echo"-ing a good 200 pages more than needed. There's a double agent which is an unusual device in a novel about brain injuries and mental health. I learned that there are fewer than 100 whooping cranes left in the world, so, cheers mate. Close the cover on Richard for me. It isn't poorly written, but it's not my taste in the least.